Which leagues book most?
Yellow cards per match — a rough measure of how tightly a league is refereed.
Portekiz Süper Ligi (Portekiz) books more than anyone: 6,09 yellow cards a match.
| League | Bookings per match | Matches |
|---|---|---|
| 1. Portekiz Süper Ligi Portekiz | 6.09 | 304 |
| 2. Primera División Bolivya | 5.9 | 239 |
| 3. Primera División Uruguaya Uruguay | 5.81 | 119 |
| 4. Primera División Kosta Rika | 5.79 | 275 |
| 5. LigaPro Portekiz | 5.75 | 306 |
| 6. Second League - Group 1 Rusya | 5.71 | 214 |
| 7. Primera División Venezuela Venezuela | 5.7 | 291 |
| 8. Rusya Birinci Futbol Ligi Rusya | 5.56 | 375 |
| 9. Serie C - Girone C İtalya | 5.51 | 374 |
| 10. First League Kuzey Makedonya | 5.49 | 196 |
| 11. Liga Pro Ekvador | 5.48 | 237 |
| 12. First League Bulgaristan | 5.4 | 222 |
| 13. Malta Süper Ligi Malta | 5.34 | 160 |
| 14. Second League Bulgaristan | 5.34 | 332 |
| 15. Serie B İtalya | 5.32 | 388 |
| 16. La Liga İspanya | 5.27 | 376 |
| 17. Primera División RFEF - Group 2 İspanya | 5.25 | 377 |
| 18. First NL Hırvatistan | 5.23 | 235 |
| 19. Bosna-Hersek Premier Ligi Bosna-Hersek | 5.21 | 193 |
| 20. Primera División Peru | 5.17 | 234 |
| 21. Liga de Expansión MX Meksika | 5.11 | 308 |
| 22. Serie C - Girone A İtalya | 5.11 | 431 |
| 23. 1. Division Kıbrıs | 5.06 | 190 |
| 24. Categoría Primera A Kolombiya | 5.05 | 404 |
| 25. Second League - Group 2 Rusya | 5.04 | 231 |
| 26. Proximus League Belçika | 5.04 | 112 |
| 27. Segunda División Peru | 5.02 | 128 |
| 28. Ukrayna Premier Ligi Ukrayna | 5.01 | 143 |
| 29. İsviçre Challenge Ligi İsviçre | 5 | 179 |
| 30. Liga II Romanya | 4.99 | 255 |
| 31. Virsliga Letonya | 4.99 | 115 |
| 32. İsviçre Süper Ligi İsviçre | 4.97 | 182 |
| 33. Rossiyskaya Premyer-Liga Rusya | 4.93 | 240 |
| 34. Second League - Group 3 Rusya | 4.93 | 259 |
| 35. Serie C - Girone B İtalya | 4.9 | 344 |
| 36. Segunda División İspanya | 4.86 | 457 |
| 37. Persha Liga Ukrayna | 4.84 | 147 |
| 38. Primera División RFEF - Group 1 İspanya | 4.84 | 361 |
| 39. Serie B Brezilya | 4.83 | 376 |
| 40. Liga Profesional Argentina Arjantin | 4.83 | 492 |
Showing every competition. Major competitions only
Counted from match events, so a league appears only once its matches carry recorded cards.